Questions tagged [p-trap]

A P-trap is an elbow inside a drain that is designed to hold water to prevent sewer gases from making it back up the sink. The trap then empties into the drain line at the wall, perpendicular to the sink drain (looking like the letter "P" turned face down). Use with the [plumbing] and [drain] tags

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Is this a good enough P-Trap

This is the plumbing under our bathtub. We are getting strong sewer gas odors in the bathroom above this plumbing. Sometimes I can smell it coming from the tub and sometimes not. Is there a chance ...
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Garbage Disposal Housing Touching Drain Pipe

I have just taken out an old insinkerator badger 5 and I'm replacing it with a evolution select from Home Depot. First some pictures: Overall situation: A closer look at the drain: From underneath: ...
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Smell from laundry drain, possibly no vent?

Just purchased a home that was renovated. Appears to have not been by a professional, nothing major but small things. Not sure what to do on this one. There is a smell coming from the in wall drain....
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Abs shower drain wtih 2 90° elbow to p-trap in shower drain

I am rebuilding shower, and i have a little issue with drain, I need to move it back and to left, the only way to do it as I figured it out it's to put 2 90° degree elbow together than in to p-trap,I ...
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Is this P trap and AAV configuration acceptable with regard to the dishwasher drain inlet?

Our new sink arrived and the position of the drain from the wall is higher than ideal. Because of this, I ordered a reversible P trap to accommodate the drain location elevation and also intend to ...
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How to install a P-Trap with no offset and minimal horizontal travel

Hey professional plumbers (of which I am not). I am looking to replace the P-trap on a new kitchen sink install but I'm running into issues with the spacing for the p-trap. We are converting from a ...
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Can I replace the swivel elbow of a p trap with a straight pipe

Can I replace the swivel part of a ptrap with a straight connection right into the drains of my two sink bowls? Basically like in the picture. The red line shows where the threaded swivel connection ...
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Bathroom Sink Plumbing

I installed a new countertop and sink in my 20 yr old home. The existing sink drain pipe is 1 1/2 and it appears to be a Street fitting but with an edge on it to retain a threaded ring. I have tried ...
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Double P Trap Unvented Under Slab

My kitchen sink has 2 p-traps that are unvented. One p-trap is under the kitchen sink, and the second is under the slab. What should I do? I am concerned about toxic sewage gas, not a slow drain. It ...
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Plumbing config - max trap arm to vent, top plate penetration, existing stack connection

Current Conditions This is a slab foundation home in California and the kitchen is on the first floor. I am moving a kitchen sink to a new wall. It will be located beneath an existing window. To the ...
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Can the standpipe for washer be relocated without moving ptrap?

In my area, the ptrap arm length (section between waste stack and ptrap) is limited to one foot per 1/4” of the pipe’s inner diameter. (at a 1/4” per foot slope) I want to move my washer a bit further ...
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Sink gargle after draining or when flushing toilet

I have recently installed a new vanity but had to extend the trap back to the drain as it didn’t line up like it did before replacing the vanity. Before it never made noise when draining or flushing ...
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can I right turn the p trap?

I am putting a shower where I have to take a right turn (because of the distance between the p-trap and drain pipe is very small I had to take a right turn) on the top of the p trap to tie into the ...
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1-1/4 brass sink drain pipe stuck in larger cast iron elbow--threaded or not?

Attempting to replace p-trap in bathroom, 1954 ranch on slab. There is a 1-1/4 brass drain pipe "stuck" into larger cast iron elbow in wall. The brass pipe is short, no longer perfectly ...
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What parts do I need for a bathroom sink trap?

I'm replacing the bathroom vanity cabinet, sink and countertop, located between two walls. Picture below. I plan to cut the current p-trap arm, leaving enough of it sticking out of the cabinet to ...
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Plumbing a 60inch double vanity with one or two p traps

Here is my layout. I have one drain on the right side of the vanity coming through the floor. If I come up to TEE WYE Going to The left sink with a pipe run that is 40 inches hooking to a p-trap then ...
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New garbage disposal drain is a bit higher than stubout on wall

So I'm in a basement that is below the drain-level of the house, and there's a small kitchenette, bathroom, and thus a sump pump. I decided to in garbage disposal unit (there wasn't one before) in ...
unknownprotocol's user avatar
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Water leaking from sink trap

This weekend I replaced a drain stopper and all the hardware down to the p-trap, keeping those parts original. After connecting everything I ran the water for about 10-15 minutes while I cleaned up. ...
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Why is this Ptrap installed in this location?

Here is a recent installation done to my home I took this one before i drained the water: Note that this a p-trap that is installed at the external wall of my house. It would be in line with the p-...
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How to remove old p-trap clean-out plug

I have a slow draining bathroom sink that backs up into my bathtub and vice versa. I have removed what I thought was the clean-out plug, but there is move metal beneath. Maybe I only removed the ...
domicile's user avatar
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Why are p-trap j-bends reversed depending on application?

Whenever I install P-traps under sinks (eg, usually inside a cabinet or the like, but outside of a wall, using threaded fittings), the asymmetrical J-bend has the straight side towards the drain and ...
tau's user avatar
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Collar between shower drain and p-trap?

I am renovating a small bathroom, including a shower. I am needing to replace the shower drain assembly, but it is a very tight area to do much work in, with no access from underneath. The current ...
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